I have a Blackberry 8700g for T-Mobile, When I updated the Blackberry by handheld software (v 4.2.1.107), the Mobile Network is changed to 4 black character, originally network should be displayed 'CHINA MOBILE', friends, Any ideas? How to fix this problem?

Thanks first ^.^

What 4 black characters did it change to? GPRS? EDGE?

Can you change themes, and if you do, does your network show correctly?

No, I mean that isn't EDGE or GPRS, it shows available network - CHINA MOBILE ( network provider), it is at the center of BB screen. I can see the characters EDGE, but I cannot see the CHINA MOBILE, I tried to change the theme, but same as before.

Still odd.

There are other OS upgrades you might move to, which might fix that bug.

Thanks, I want to downgrade to Handheld SW V4.1 version, but I cannot to find it again in T-Mobile website, the site just supply the lastest version V4.2.1.107, I didn't find any other versions from internet. Do you know this download address? Thanks for your help very much